Home / 138,200,426,702.03-190,700,071,459.29-76,392,647,060.70

Finding the Fourth Proportional to 138,200,426,702.03, 190,700,071,459.29 and 76,392,647,060.70

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Solution

The fourth proportional to 138,200,426,702.03, 190,700,071,459.29 and 76,392,647,060.70 is: 105,412,722,674.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,200,426,702.03 : 190,700,071,459.29 = 76,392,647,060.70 : x
  2. Step 2: Convert to fraction form
    138,200,426,702.03/190,700,071,459.29 = 76,392,647,060.70/x
  3. Step 3: Cross multiply
    138,200,426,702.03x = 190,700,071,459.29 × 76,392,647,060.70
  4. Step 4: Simplify right side
    138,200,426,702.03x = 14,568,083,253,439,810,764,800
  5. Step 5: Solve for x
    x = 14,568,083,253,439,810,764,800/138,200,426,702.03
  6. Step 6: Final answer
    x = 105,412,722,674.51

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.